Paper-cutting machine



(no Model.) v 8 Sheets-Sheet 1. G. W. ZEIGLER. PAPER GUTI'INGMAGHINE.

Patented Septr5, 1893.

I *3 Sheets-$115M}.

(No Model.)"

G. w. ZE IGLER. PAPER G UTTING MAGHINE.

Patented Sept 5, 1.893.

UNITED STATES PATENT wice.

GEORGE W. ZEIGLER, OF ANDERSON, INDIANA.

PAPER-CUTTING MACHINE.

SPECIFICATION forming part of Letters Patent No. 504,510, datedSeptember 5, 1893.

Serial No. 449.459. (No model.)

A To a whom it may concern.-

Be it known that I, GEORGE W. ZEIGLER, a citizen of the United States,residing at Anderson, in the county of Madison and State of Indiana,have invented certain new and useful Improvements in Machines forCutting Paper, &c., of which the following is a specification, referencebeing had therein to the accompanying drawings, in which- Figure 1 is aplan view of the complete machine; Fig. 2 a rear end view showing themachine in the act of cutting a package of paper; Fig. 3 a longitudinalvertical sectional View; Fig. 4 a detail perspective view of the devicefor operating the apron; Fig. 5 a side elevation of a portion of themachine; Fig. 6 a detail sectional view of the cutter and operatingdevices on its shaft; Fig. 7 a similar'view showing a slightmodification, and Fig. 8 detail sections on line 8-8 of Fig. 8 showingthe pivotal connection of the hinged supporting plate. Fig. 8 is adetail view on line 8 8 of Fig. 8, and Fig. 9 a detail sectional view ofthe device for operating the apron.

This invention relates to improvements upon that class ofpaper cuttingmachines covered by my application for patent, Serial No. 426,027, filedMarch 22, 1892, wherein are employed a vertically swinging arm carryinga traveling rotary cutter and an endless apron to carry the materialrearward under the presser bar; and its nature and objects will fullyappear in the course of this description.

. Referring to the drawings by letter, a designates the supports of themachine, a the table-frame mounted thereon, b the transverse presser-barextending across the machine near its rear end and supported on theupper ends of two vertical bars I) which pass down through openings inthe table and are vertically guided by loops b on the supports at. Thesebars I) have racks formed on their edges with which engage pinions b"secured on atransverse shaft 19 journaled in the frame below the table.On one end of this shaft 19 is secured a worm-gear and meshing with thisgear is a worm b journaled in hearings on the outer side of one of thesupports'ct and having its shaft extended to the rear end of the machineand provided with an operating crank b. By means of these devices thepresser bar may be drawn down powerfully and evenly upon the paper,firmly clamping the paper to the table while being out, the worm andgear serving to positively lock the presserbar in its adjustedpositions.

Mounted upon transverse rollers c c journaled in the table-fraine, isthe endless feedapron c which carries the material under thepresser-bar, its upper portion being supported against sagging by theboard or plate 0', as covered in my former application hereinbeforereferred to. On one end of the rear roller 0 is secured a toothed wheel0 and alongside this toothed wheel is loosely secured a lover 0 providedwith a stationary pawl or lug 0 adapted to engage the toothed wheel. Thereduced end of roller 0 passes through a vertical slot in the lower endof the lever and thereby permits the same a limited independent radialmovement on the shaft. This arrangement is desirable in order that thecrank may be turned down out of the Way and will not have to be turnedentirely around in operating the apron-roller, the adjacent parts of themachine preventing the entire rotation of the crank when set close tothe machine. Without this or a similar device the apron shaft would haveto be somewhat extended beyond the adjacent parts of the operatingdevices, which would sacrifice compactness. This arrangement alsofacilitates the accurate adjustment of the paper carried by the apron.Extending across under the presser bar is the bar or beam 0." of thetable frame and close behind the upper corner of this beam is hinged aboard or plate (1 which forms a section of the table and extendsapproximately the full width of the same. The hinge of this boardconsists of lateral pivots ol projecting from the side edges of theboard and setting in recesses in the side beams a and held in place bymetal plates d as shown in Fig. 8.

The rear of this board is supported horizon-- tally by means of a cam dwhich is secured to and operated by a handle or crank d" j ournaled in atransverse frame-beam a below the board. By rotating the cam a half-turnthe rear edge of this board may be dropped a short distance until itrests on said beam a thereby inclining the board downwardly clampedsecurely by the presser-bar and be fore it is cut, this section islowered by the cam. Then when the paper is cut it automatically movesaway from the knife down the inclined section,thereby not only freeingthe cutter but also disconnecting the sheets should they be slightlystuck together by the cutting operation. In cutting thick stacks ofpaper it is necessary to run the cutter across the machine severaltimes; this inclined section is particularly advantageous in such casesas the paper will automatically move away from the cutter after eachpassage of the same as is evident, the cutter cutting in traveling inboth directions.

The swinging-arm e which carries the rotary cutter g, extendstransversely of the machine near the presser bar and is pivoted on abracketfsecured to one of the supports a, this bracket being preferablysecured by suitable adjustable devices (such, for instance, as thevertical slotsand bolts f shown in Fig. 3) in order that the cutter armmay be vertically adjusted. The opposite end of this arm e is guided andheld in place by means of a vertical plate 2', which, as shown mostclearly in Fig. 5, is secured adjnstably to the table in the rear of thearm. This plate '6 together with the presser-bar serves to hold the armagainst lateral vibration during the cutting operation. To support theouter end of this arm e and accurately adjust it, a verticallyadjustablescrew 2" is screwed into the top of the table near the guide-plate 7;,as shown in Figs. 2 and 5. The arm e is provided with a long horizontalslot 6' and below this slot and parallel with it, on the rear side ofthe arm, is formed a horizontal rack 6 The pivotal bolt that secures thearm to its bracket is extended rearwardly and formed into ashaftf, whoserear end is provided with an operating crank f" and is journaled inanother bracket f suitably mounted on the adjacent edge of the table.Connecting the sleeve f X formed on the end of the bracket f to the freeend of the arm e is a rigid rod f which serves to brace the arm andassist in preventing lateral vibration in its pivotal movements.

The rotary cutter g is mounted between the arm e and the presser bar,rigidly on a short shaft g extending rearwardly through the slot 6', andloosely mounted on this shaft close behind the cutter is a looseroller-guide g" which serves to guide the cutter and keep it down to itswork, as more fully described in my other application hereinbeforereferred to. A gear -wl1eel g is slidably secured on the shaft g in therear of the arm and this gear meshes with rack e on the arm.

Slidably secured on the shaft g, in the rear of gear 9 is asprocket-wheel h", which carries pins g which engage recesses in theadjacent face of the gear and cause the two wheels to revolve in unison.The rearwardlyextending hub of the sprocket-wheel is slottedlongitudinally and Working in these slots are the ends of apin g rigidlysecured in the shaft 9. In this manner the wheels are permitted alimitedsliding movement on the shaft but are compelled to rotate with it.

To normally draw the cutter, with the de sired degree of pressure,against the front side of the arm and hold the gear and sprocket inproper position,a bowed spring is secured between the projecting ends ofthe pin g and the adjacent sprocket wheel, as shown most clearly in Fig.(3. Thus yieldingly drawing the cutter against the arm is advantageousin that the desired degree of pressure against the arm is at all timesmaintained and undue friction thereby avoided.

To rotate the cutter and carry it back and forth across the table, anendless sprocket chain his employed, said chain being mounted upon twovertical sprocket-wheels h journaled upon the rear side of the arm atits opposite ends. The lower part of this chain is held constantly inengagement with the sprocket-wheel h" on the rear end of the short shaftg, so that as the chain is drawn back and forth the cutter shaft isrotated and carried back and forth across the table, the gear on thisshaft serving to positively rotate the cutter in a forward direction andimpart to its cutting edge the desired accelerated motion to obtain ashear-cut, as fully described in my former application. The chain ispreferably driven by means of a pair of intermeshing gears 71- 72,3, theformer of which is secured on the shaft of one of the wheels h and thelat ter on the shaft f, whereby by simply operating the crank f" in onedirection the cutter may be drawn across the machine and by turning itin the opposite direction it may be brought back again. A weightj maybehung on a suitable hook or lug on the arm a beyond its pivotal point, inorder to counterbalance the weight of the arm and its parts, as isevident. The weight hook abuts against a stop 3'' on the bracket whenthe arm is raised and thereby prevents the arm moving over too far.

Before the paper is adj usted on the table, the swinging arm is swung uptoa vertical position out of the way,as shown by dotted lines in Fig. 2.When the paper is properly clamped the arm is let down and the cuttercaused to travel across the table by simply revolving the shaft f bymeans of its crank, the arm and presser bar serving to guide and bracethe cutterin its movement. By securing the driving gear 72. on a shaftconcentric with the pivot of the arm it will be observed that the gear71. and

b are kept constantly in engagement irrespective of the position of theswinging arm. Should the package of paper he narrower than the apron,the cutter need not be caused to travel entirely across the table, as isevident, but may be simply run back and forth over the narrow package bysimply oscillating the operating crank f In cutting thick packages ofpaper the arm 6 rests directly upon the same and as the paper is cut andmoves away the arm settles down automatically un-- til it rests on itsscrew stop 1', as is obvious.

As shown in Fig. 7, the sprocket wheel 72." may be secured on the shaftbetween the gear g and the arm 6, in order to apply the propelling powerto the cutter-shaft as nearly midway between the cutter and the gear aspossible, and thereby prevent straining and binding; this is especiallydesirable in large power machines. The rack e inthis instance will besupported and secured to the arm by suitable brackets g*, as shown.

Having thus fully described my invention, what I claim is- 1. Thecombination, in a paper-cutting or analogous machine, of a table, atransverse presser-bar and means for operating it,acutter operating nearthe presser-bar, a table section cl hinged at its forward edge to thetable-frame, directly in the rear of the path of the cutter, andextending approximately the full width of the table, means forsupporting the section (1 flush with the table and for loworing its rearedge, and a support for the rear edge of section d, located a shortdistance below the upper surface of the table, so as to maintain saidsection in a rearwardly-inclined position when lowered, as and for thepurpose described.

2. The combination of a table and a cutter and a presser bar,apron-rollers journaled in the table-frame an apron on the rollers, atoothed wheel on one of the rollers, aradially movable lever or crank onthis roller and provided with a stationary lug engaging the toothedwheel, substantially as described.

3. The combination of a table, a swinging arm pivoted thereon andcarrying a cutter, its pivotal bolt being extended rearw'ardly, abracket f on the table for supporting the rear end of said shaft, saidbracket being provided with a short sleeve f and a rigid brace-rod fextending from the sleeve f X to the free end of the arm, substantiallyas described.

' 4. The combination of a table, a transverse arm, a shaft carrying atraveling cutter, said shaft also carrying a sprocket wheel, a chaincarried by the arm and engaging said sprocket wheel, and means foroperating the chain, substantially as described.

5. The combination of a table, a transverse arm pivoted at one side ofthe table, a traveling shaft g carried by the arm, a rotary cutter and asprocket on this shaft, a sprocketwheel h journaled at each end of thearm, an endless chain carried by the sprockets,a shaft f journaledconcentrically with the pivotal as described.

6. The combination of a table, a transverse presser bar, a transversevertically-swinging slotted arm pivoted on a bracket at one side of themachine and provided with a rack e ashaftf', a shaft g passing throughthe slot in the arm and rigidly carrying a rotary cutter working betweenthe arm and the presser bar, a guide roller mounted on this shaft g andworking in the slot in the arm, a sprocket-wheel on shaft g and workingin rack 6 an endless chain mounted on sprocket wheels on the arm andengaging the sprocket 'on shaft g, and gears h2 h for operating thechain-carrying sprockets, substantially as described.

7. The combination of a table, an arm extending across the same a rotarytraveling cutter carried by the arm means for rotating the cutter, andmeans for holding it yieldingly against the face of the arm,substantially as described.

8. The combination of a table, an arm extending across the same andprovided with a rack a traveling shaft g carried by the arm, a cutter onthe shaft and bearing against one face of the arm, a gear on the shaftand held in engagement with the rack, and a spring for yieldinglyholding the cutter against the arm and the gear in engagement,substantially as described.

In testimony whereof Iaffix my signature in presence of two witnesses.

GEORGE W. ZEIGLER.

Witnesses:

CHARLES D. DAVIS, CHARLES MUZZY.

point of the arm, and gears h h substantially

